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Date:      Tue, 29 May 2001 21:00:07 -0700 (PDT)
From:      K Karthik <kar_alerts@mglorysb.com>
To:        freebsd-bugs@FreeBSD.org
Subject:   Re: misc/27745: burncd denies access to other CD drives
Message-ID:  <200105300400.f4U407V67494@freefall.freebsd.org>

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The following reply was made to PR misc/27745; it has been noted by GNATS.

From: K Karthik <kar_alerts@mglorysb.com>
To: freebsd-gnats-submit@FreeBSD.org, kar_alerts@mglorysb.com
Cc:  
Subject: Re: misc/27745: burncd denies access to other CD drives
Date: Wed, 30 May 2001 11:59:45 +0000

 There was some misunderstanding here (sorry for creating any confusion, 
 anyway). Actually the message "READ_TOC - ILLEGAL REQUEST" usually appears 
 after blanking (the command is "burncd -f /dev/acd1c blank") is complete.
 
 The /dev/acd0c (CD-reader) can be  mounted on /cdrom and CD-writer can be 
 mounted on /cdrom1 (all created by sysinstall).  I am not trying read the CD 
 in the "burner" during blanking/burning process. I cannot even mount the 
 /cdrom1 (cd-burner) when burncd is running which means I am not trying to 
 read from the burner.
 
 When I give "mount /cdrom1" when burncd is running, i get
 
 ---
 cd9660: /dev/acd1c: Device busy
 ---
 
 
 Here is the sequence of the commands.
 
 (ttyv0)
 # cd /disk2/tmp
 # mount /cdrom
 # cp -Rv /disk2/tmp/* .
 (I can see the filenames being copied)
 
 (switching to ttyv1)
 # cd /disk2/tmp2
 # mount
 /dev/ad0s1a on / (ufs, local)
 /dev/ad0s1f on /usr (ufs, local, soft-updates)
 procfs on /proc (procfs, local)
 /dev/ad1s1e on /disk2 (ufs, local, soft-updates)
 /dev/acd0c on /cdrom (cd9660, local, read-only)
 # burncd -f /dev/acd1c -s 4 data cd.iso fixate
 
 (when burncd starts, in ttyv0 the filenames being displayed, stops, the 
 light in the CD-reader (/dev/acd0c) stops glowing. But when burncd finishes 
 then the "cp" process resumes and the CD-reader lights starts glowing)
 
 Hope this helps.
 

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